sorting posts by topic_title

Hello,I’m a wordpress user and I just downloaded bbpress for a project I’m working on since I can’t get some key features on wordpress. My project involves polls that can be created by users of the site, and also regular forum topics.

I have gotten the polls plugin bbpress polls and it adds ‘[poll]’ in front of the topic title. now I want to use this feature to display topics with polls separately from topics that don’t have polls since this seems to be the most distinguishing factor.

My question is how can I get the topic title in the loop for use in my code? the Function topic_title() displays the topic i.e. it echoes it, but I would like to get it as a string that I can use in functions.

Also, I would like to know how I can get a reference of all the index keys in the $topics array so I can use them in my code.